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Total 96 questions
Exam Code: H12-891_V1.0                Update: Apr 19, 2026
Exam Name: HCIE-Datacom V1.0

Huawei HCIE-Datacom V1.0 H12-891_V1.0 Exam Dumps: Updated Questions & Answers (April 2026)

Question # 1

In the gRPC-based telemetry protocol, the data model layer consists of the RPC layer, telemetry layer, and service data layer. Drag the .proto file to the layer where the file should be located.

Question # 2

By default, the domain ID of an OSPF process is the same as the process ID. You can run the domain-id command in the OSPF process view to change a domain ID.

A.

TRUE

B.

FALSE

Question # 3

You write the following Python code to invoke a RESTful API to obtain the token ID of iMaster NCE. Which of the following statements are correct?

import requests

response = requests.get( " https://139.9.213.72 " )

print(response.json())

Error returned:

requests.exceptions.SSLError: HTTPSConnectionPool(host= ' 139.9.213.72 ' , port=18002): Max retries exceeded with url: /controller/v2/tokens (Caused by SSLError(CertificateError( ' hostname ' 139.9.213.72 ' doesn ' t match ' devzone.huawei.com ' )))

Options:

A.

The client does not trust the SSL certificate of the server.

B.

The SSL certificate verification fails.

C.

The code can be modified as follows:import requestsresponse = requests.get( " https://139.9.213.72 " , verify=False)print(response.json())

D.

The code can be modified as follows:import requestsresponse = requests.post( " http://139.9.213.72 " , verify=False)print(response.json())

Question # 4

On the campus network shown, IPv6 is deployed for service tests. Four routers are deployed on the network, and OSPFv3 is used for IPv6 network connectivity. An engineer checks the LSDB of R2 and obtains a Link-LSA. Which of the following statements about the LSA are correct?

A.

The link-local address of R2’s GE0/0/0 is FE80::2E0:FCFF:FECD:4F79.

B.

The IPv6 address prefix of R2’s GE0/0/0 is 2001:DB8:2345:23::/64.

C.

This LSA indicates that R2 does not support external routes but can participate in IPv6 route calculation.

D.

This LSA is generated by R2.

Question # 5

Which of the following link types may appear in OSPF Router-LSAs?

A.

TransNet

B.

P-2-P

C.

Vlink

D.

StubNet

Question # 6

Drag the IPsec functions on the left to the corresponding function description on the right.

Question # 7

The Huawei SD-WAN solution has three types of channels. Drag the channel names to their corresponding callouts.

Question # 8

Huawei Open Programmability System (OPS) uses HTTP methods to access managed objects to manage network devices. To facilitate script compilation, Huawei OPS provides the Python script template. In the Python script template, what are the contents of the Content-type and Accept fields in the header of an HTTP request packet?

A.

text/xml, text/json

B.

text/json, text/json

C.

text/xml, text/xml

D.

text/json, text/xml

Question # 9

For telemetry data push, data can be transferred between devices and collectors using the TLS protocol. TLS must be configured for data encryption if data is pushed based on gRPC.

A.

TRUE

B.

FALSE

Question # 10

In SRv6, each time a packet passes through an SRv6 endpoint node, the Segments Left field value decrements by 1, and the IPv6 DA changes.

A.

TRUE

B.

FALSE

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Total 96 questions

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